It's not a sensor per se, it is the brake light switch. Known issue. You can get an aftermarket part which is less prone to melting, but you might also ask why it is getting so hot. Check for lean running or a badly designed aftermarket exhaust that is too close. Thanks to the bunny huggers, the stock bike runs too lean as well. If you want to keep the stock exhaust, fit a tuner. Not only will it stop the brake switch meting, but the bike will run way better.
Arnotts, D&D, SEPST, custom paint or all chrome according to mood, GRC seat, wave rotors, Muscle wheels, Burleigh bars, V-Gauge, assorted pretty bits.
2007 VRSC-AW (Fun).
2007 KTM 990 Adventure (Off Road and Touring).
2006 Triumph Daytona T955i (Evil).
2009 Fatboy (Heavily Tarted Up Show Pony).
2011 Bonneville (On long term loan).
1978 Triumph Bonneville Based Racer (Needs A Rebuild)